Dispensing device for collapsible tubes



Oct. 5, 1937.

C.S.MANN

DISPENSING DEVICE FOR COLLAPSIBLE TUBES Filed Jan. 8, 1936 I 6 W 3 9 4 3O 2 3 3 Q ,5 i7 5 a 2 6 h 2 6 9 f 3 a 3 8 $9 7. M l 8 FL 5!: 0 o a? 6 41: 5 4 W 0 B m M a M 2 a /NVEl V7'OR CHARLESSTEWARTMANN" PER NEY

Patented Oct. 5, 1937 PATENT ole-Flee FOR mmrsmm UBES V Charles 'StewartMann, Vancouven British- Columbia, Canada Application January 8,

1936,-SerialNo. 58,149

6 Claims. (01. 221-60 My invention relates to improvements in dispensingdevices for collapsible tubes; Theobjects of the invention are toprovide means capable of being secured to a collapsible tube con-'taining face cream, tooth paste, shaving cream or the like, throughwhich the content of the tube may be expressed as desired; to providemeans whereby inadvertent expression of the content can be prevented.Further objects are to provide a dispensing head which can bemanufactured very cheaply on a quantity production basis and which maybe readily removed from one tube and secured to another when desired.

Further objects are to provide a device which will dispense with orreplace the screw cap now used on collapsible tubes, which will be moresanitary due to the prevention of leakage and one which will preventcorrosion of the metal incidental to leakage of the contents adjacentthe point of discharge. 1 7

The invention consists essentially of a head having a manually operablevalve adjacent the nipple of the tube to which the head is secured and aspring tensioned valve adapted to be opened to express the contents ofthe tube in response to pressure exerted upon said tube, as' will bemore fully described in the following specification and shown in theaccompanying drawing, in which:

Fig. 1 is an enlarged sectional view of the invention fitted to thenipple of a collapsible tube.

Fig. 2 is a fractional elevation showing the turn button and lock of thecontrol valve.

Fig. 3, is a side elevation of the locking button.

Fig. 4 is an elevational view of the adapter; 1

In the drawing like characters of reference indicate corresponding partsin each figure.

The numeral l indicates a collapsible tube of the usual type havingshoulders 2 and a screw nipple 3 through which the contents of the tubeare normally expressed by applying pressure to the body of the tube.

Screwed to the nipple 3 is an ejector head 4 consisting of a base 5 anda cap 6. The base is provided with a flange 1 adapted to fit onto theshoulder 2 of the tube I and the flange is provided with an annularrecess 8 to bridge the lettering normally embossed upon said shoulder.The base is provided with a vertical bore 9 and is internally threadedat its lower end as at In to fit the largest type of tube nipple.Normally provided for the internal thread I0 is an adapter H of a sizeto fit a desired tube nipple which is internally and externally threadedand is provided with a plurality of peripheral apertures I2,

see detail in Figurea, which are disposed inline with the thread so as'to-progressively come-into direct register with'a pointed set screw'l3which 1.

threadedly engages the-neck M .of the base and r a is to receive a valveplug IT. The valve plugis provided with a port Ill-which isadapted ontheplug. being turned to register with theboreys and" a passage I9 isextended longitudinally through the inner; end of theplug to a groove anannular space 20A and a plurality of channels 20B, shown in dotted linein=-Figure l, ex-

tending-acrossthe plug for the purpose of break. ingthe suction in theevent of the removal of the plug.- The outer end of the plug ll isre wduced .to-formr-a stem 2| to which is fitted a turn button 22 by anysuitable fastening means.

Thestem-Zl is housed in a recess 23 which is internallythreadedand isprovided-at its base;

with an annular groove 24 .for receiving a packing ring 25. a V V Agland collar -26 having an annular rim 2! is screwed into the recess 23,so that its rim' bears dowrrupon-the packing ring;25.- The gland collar26 isadapted to: receive a suitablepackingr.

28 which-is adjustably compressed against the. stem: 2| by awfollower 29screwed into the recess'23;

The turnbutton 22 is provided withan arcuate slot 30 which embraces apin. 3lxfitted into the base 5, the ends of the slot'forming stops tolimit the turning movement of the button when the valve plug has reachedits fully open or fully closed position. A recess 32 is formed in thebase in which a locking button 33 is slidably movable. The lockingbutton is held against rotation by a stud 34, see Figure 3, which itengages and which is screwed into the base at the side of the recess 32.The button is recessed on one side of its outer face as at 35 and isprovided with an upstanding dog 36, which dog is adapted to engage anotch 31 formed on the inner face of the turn button 22, so as to'lockthe valve plug against being moved to open position.

The locking button 33 is outwardly urged by a spring 38 which is held inline by a slidably mounted pin-39 carriedfat its free end by the lockingbutton and. abutting the base of the recess 32.

7 .42 is formed, which is closed by a conical valve 43 having a stem 44slidably extending through a boss 45 carried by a spider 46. The valvestem is provided with a tension spring 41 and a nut 48 by which thevalve may be adjusted The head is affixed-t0 a. collapsible-tube asshown and is normally left with the plug valve closed. Whena supplyofjthe contents is required, pressure is exerted upon the lockingbutton33 to depress it and remove-thedog 36 from the notch 31 of the turnbutton 22, this turn'button is'then rotated in a. clockwise direction,as

viewed in FigureZ, until the end of the slot 30 is brought to restagainst the pin 31 thus establishing communication between the-tube landthe cap 6. As the tube is squeezed the contents flow through'the valveplug and ultimately urge the conical valve 43 011 its seat and extrudetherearound' in a tubular "ribbon. "The contents emerging from the cap,though tubular at the point of discharge, collapse to a flat ribbon at avery short distance from the valve 43, which tends to economicaldelivery for tooth paste and similar commodity contents. As soon aspressure is relieved from the tube the valve'43 closes, thus cutting offthe discharge and leaving'the device clean and sanitary. By againturning the valve plug I! further extrusion of paste is definitelyprevented.

It will thus be seen that where it is now necessary to use both hands,usually wet from soap suds and remove the cap of the collapsible tubeall this will be obviated with a tube having a dispensing device such'asis above" described, for

with such a device the tube can be held with one hand, the lockingbutton depressed and the turn button rotated at the same time, so thaton pressure being applied a desired amount of the contents can beaccurately discharged leaving the device clean and sanitary after use.

It will of course be obvious that the device may be made integral withthe collapsible tube as well as an attachment therefor. j

What I claim as my invention is:

1. A dispensing device for collapsible tubes comprising a. hollow bodyadapted for connection to the discharge endof acollapsible tube, amanually controlled valve adjacent the tube discharge and a springtensioned valve disposed beyond the manually controlled valve adapted toopen in response to pressure upon the tube to discharge the contents ofsaid tube after said contents have passed through the manuallycontrolled valve.

. 2. In a dispensing device for collapsible tubes,

a manually operable valve having a rotatable stem and a turn button,said turn button being mounted flush with the dispensing device andhaving a notch in its underside, a manually operable spring pressed lockbutton slidably mounted in the dispensing device, said lock button beingdisposed in contact with the turn button and having a dog normallyengaging the notch therein to hold said turn button against rotation,said lock button being adapted to be inwardly pressed 1 to disengage thedog from therecess of the turn button and to permit the rotation of saidturn button.- V V V 3. In a dispensing device for collapsible tubes, avalve body having a central bore and a recessed chamber adjacent itsouter end, a valve plug having a spindle rotatable within the bore, agland collar having an annular rim adapted to regise ter with acomplementary groove at the base of the recess, means for securing saidcollar within the bore, a' follower adapted tobear against a packingwithin the gland collar, and means for securing the follower in adjustedposition.

4. A dispensing device for collapsible tubes comprising a body adaptedfor connection to the nipple of a collapsible tube, said body having aported passage extending therethrough to discharge, a manually operablevalve controlling the flow of material through said ported passage,

manually operable means for locking the valve against operation and aspring pressed valve at the discharge end of the ported passage adaptedto open in response to pressure upon the tube.

5. The combination with a threaded nipple and an internally threadedconnector of greater diameter than the nipple, of an adapter consistingof an annular member internally and externally threaded, saidconnector having a set screw, said annular member having a plurality ofperipheral apertures, said set screw being adapted to extend through anyof said apertures and engage the nipple to prevent'rotation of theconnector and the annular member about the nipple.

6.'The combination ,with a threaded nipple and an internally threadedconnector of greater of peripheral apertures disposed inline with thethread of said connector, said set screw being adapted to extend throughany of said apertures and engage the nipple to prevent rotation of theconnector and the annular member about the nipple.

CHARLES STEWART MANN.

